US Bridges

Mo 179 S over Is 70

Fair

Cooper County, Missouri · S 13 T 48 N R 16 W · Structure no. 8

Built
1958
67 years old, rebuilt 2009
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
220 ft
4 main spans
Daily traffic
1,360
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 179 S over Is 70 is a steel continuous stringer/multi-beam or girder carrying Mo 179 S over Is 70 in Cooper County, Missouri. It was built in 1958 and reconstructed in 2009, so it is 67 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,360 vehicles a day, roughly 5% of them trucks, projected to reach 1,836 by 2044. The structure is 220 ft (67.1 m) long and 29 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesMo 179 S
CrossesIs 70
LocationS 13 T 48 N R 16 W
RouteState Highway 179
CountyCooper County
StateMissouri
Coordinates38.93963, -92.59689
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.6 US tons
Inventory rating27.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length220 ft (67.1 m)
Longest span60 ft (18.3 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,360 (2024)
Projected traffic1,836 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mo 179 S over Is 70 built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2009.

What condition is Mo 179 S over Is 70 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

How much traffic does Mo 179 S over Is 70 carry?

About 1,360 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Mo 179 S over Is 70?

The structure is 220 ft (67.1 m) long with a longest span of 60 ft (18.3 m) and a deck 29 ft wide.

Who owns Mo 179 S over Is 70?

It is owned by the State Highway Agency.